Transformer.



C. AALBORG & 0. SCHAUMBERG.

TRANSFORMER.

APPLICATION FILED JULY 6, 1903.

Patented Aug. 6, 1912.

, 3 SHEETS SHEET 1,

' Mmms AHURNEY WITNESSES I C. AALBORG & 0. SCHAUMBERG.

TRANSFORMER.

APPLICATION FILED JULY s, 1908.

1,035,069. Patented Aug. 6, 1912.

3 SHEETS-SHEETZ my. 8. 8

3 29 -35 29 31 I g 1 28 Z8 ATTORNEY C. AALBORG & O. SOHAUMBERG.

TRANSFORMER.

APPLIOATION FILED JULY 0, 1908.

ly F j WlTNESSES: N was A BY ATTORNEY Patented Aug. 6, 1912.

3 SHEETS SHEBT 3 STATES IEATENT OFFICE.

CHRISTIAN AALBORG, 0F WILKINSBUBG, AND QTTO SCHAUMIBERG, OE PITTSBURGH,PENNSYLVANIA, ASSIGNOBS, BY MESNE ASSIGNMENTS, T0 WESTINGHOUSE TRIO &MANUFACTURING COMPANY, OF EAST PITTSBURGH, PENNSYLVANIA, A

QOBPORATION OF PENNSYLVANIA TRANSFORMER Specification of Letteis Patent.

Appliooflen Med July e, 1908. Serial in. 42,222.-

Patented Aug. 6, 1912.

core structure is composed and other adjust therewith for securablemeans cooperati ing the transformer within the casing.

It has been found desirable to construct transformers with concentricprimary and secondary coils which are approximately cylindrical or el'litical in transverse section, opposite sides 0 said coils beingsurrounded by magnetizable core members arranged in radial planes. Thesecore members are, of

course, built up of plates or laminae and mustbe securely clampedtogether in order that the transformer may be handled withput ipjury tothe coils and without warping the e'ore'structure or disarranging itselements.

According to our present invention, we

provide an inclosing tank or casing which is i welladapted to receivetransformers of the j class above indicated and, furthermore, we providespecial end frames and holding-in --devices by which the transformercore members may be firmly held together and readily secured to thecasing after the transformer The lower end frames 11 and 12 are also isassembled and disposed therein.

Figures 1 and 2 are elevations at right' tute feet by means of which thetransformer angles to .each other, of a transformer and inclosing caslngconstructed in accordance with our invention, the casing being shown insection todisolose the arts oft/ho trans- A fit to former and thedevices or v the casing, Fig. 3 is a plan view, with the cover removed,of the transformer shown, in Figspl and a and ifigs4, 5,-6, 7, s, and;'9 are detail views ofthe holding-in device.

Referring to thefldrawings, the device;

illustrated comprises anv inclosing casing consisting of a tank 1. andcover 2, a transformer comprising a plurality of core sections 3, 4-, 5,and 6 and coils 7 and 8, terminal blocks 9 and 10 and a holding-indevice. V

As shown, the core consists of two members disposed in planes at rightangles to each other, each comprisin two sections which surroundopposite si es of the rimary and secondary windings 7 and 8 of thetransformer. g

After the transformer cores and coils are assembled their lower ends areclamped to gether by a pair of end frames 11 and 12 and a bolt 13andtheir. upper ends are similarly clamped together. by a. pair of endframes 14 and 15 and a bolt'lfi. '3.

In order that the core may occupy a mum space within the coils,the-concoctions 3 and 4' are disposed with their oldjaoent edges closetogether, while the other seotions 5 and 6 are located withtheiradjacent,

edges close to the sides of the sectional! and 4.

In order to improve the ventilation of the core members, the -laminie ofwhichtheyai e composed maybe so spaced apart a't tlieir outer sides asto place each plate'br lamina more nearly in a radial plane asindicated{ in Fig. 8 of the drawings.- The end plates.

aocommoda are specially constructed to v V 8:: them to the corestructures when they spaced as above indicated. 1

Each of the lower end is provided with flanges Hand 18 which are soformed as to engage the sides and edges of the lower, ends of the coresections.

provided with projections 19 which constimay besupgprted when itisremoved from the cas ng. I en in the casing a free circulation of oil.or other insulating fluid is permitted since the transformer issupported frames 11 and 12 on ribs 20 which project upwardly from thebottom of the surfaces 22 scent do their ends to assist in guiding v p atransformer to its to receive the end frames .1 1 and 12 and vareprovided with inclined 'ico central location when lowered into if! 3.1of the upper end frames is provided 1 flanges 23 which engage the outerfaces the core members and with upwardly er:- iending projections 2% tothe top of which terminal blocks are secured. The projections areprovided with inwardly extending tongues 25 which are notched andoverlap other to form a joint. The ends of upper frame are provided Withoute'ardly extending lateral projections 26 the per edges of which areslightly beveled. "3e corners of the approximately rectantanlr l areprovided with external long' ndinsl depressions 27', the upper ends ofwhich form ledges 28 to receive and suppdi't insulating bushings 29. Theinner faces of the depressions 2-7 at two opposite of the tank areprovided with ribs 30 that form grooves 31 the beveled sides of Wh thesurfaces of two pairs of listing blocks 3-2 and The lovvcr ends or theblocks 32 and are provided with routed p QijQCtllfJllS 34 which straddlethe projections 26 on the upper end The arrangement of parts is such theblocks 32 and 33 are placed pcsition, alter the transformer is assem in.the tank, and are forced apart by expansion bolts 35 which complete thehold ing-in device, the ends of the upper frame are forced downwardlyand inwardly that itimpossible to effect any relative movement betweenthe transformer and the cas lug Without loosening the bolts. The coils 7and 8 are provided with conducting leads 36 certain of which terminatein terminal members that are secured to the terminal block 10, othersbeing threaded through holes in the insulating terminal blocks 9.(londucting leads extend through the bushings 29 and form connectionsbetween the terminal members and external circuits. The tongueprojections 25 on the upper end frames together constitute a loop whichmay be engaged by a crane hook in lifting the tra sfornier from thecasing.

T he insulating bushings 2 are preferably scaled to the casing, andleads are sealed in the bushings so that, When the cover is securelyfastened to the tank by bolts, the transformer is Weather proof and maybe operated outdoors.

Ir much as various structural modificzn tions may be effected in thedevice illus traled without departing from the spirit of our invention,we desire that only such limit tions shall be imposed as are indicatedin the appended claims.

We claim as our invention:

Ii. 1 he combination with an inclesing case. winding and a plurality ofcore sccsurrounding thesides of the winding, and bottom clamp ng framesfor the ripeness core sections and a llilli'liilgdfi means cociprisingclamping blocks "that engage both the casing and the top clamping framesand bolts for forcing said blocks into clmnping relation with the casingand the top 2. The combination with an inclosing casing, anapproximately cylindrical Winding and a plurality of corc'scctionssurrounding the sides of the Winding and disposed in substantiallyradial planes. of top and bottom frames for clamping the core sectionsto gether and an adjustable holdingin means comprising bol s and blocksactuated by said bolts into clamping, engagement with tlr casing and thetop irarnes.

The combination with an inclosing casing, an approximately cylindricalwinding and a plurality of core sections surrounding the sides of theWinding and disposed iii substantially radial planes, of end frames forbinding the core sections together, adjuslablc blocks in engagement Withthe end plates and the casing, and bolts for forcing said blocksoutwardly against the. casing an downwardly against the end frames.

4. The combination with an inclosing casing and a transformerCOTHPI'ISHW substantially concentric and approximately cylin- .dricalprimary and secondary coils, and a plurality of laminated core sectionssurrounding the sides of the coils and d sposed in substantially'radialplanes, of end frames for bindin the laminae of the core sections togeter and maintaining the relative positions of the several sections,adjustable blocks coiiperatin directly with the end frames and with t ecasing, and means for forcing said blocks into clamping relation Thecombination with an inclosing cesing having downwardly beveled cornerprojections, 'a'transformer comprising an approximately cylindricalWinding, a pluralf ity of core sections surrounding the sides of theWinding and disposed in substantially radial planes, and flanged endframes for clamping the core sections together, of a holding-1n devicefor securing the trans former in the casing, said device comprisingwedge blocks which engage the casing pro jections and projections on theend frames,

and expansion bolts interposed between cptill rallt-y of laminated coresections surround ing the sides of the coils and disposed insubstantially radial planes, and end frames for binding the laminae ofthe core sections together and maintaining the relative positions of theseveral sections, said end frames being provided with. lateralprojections, of a holding-in device for securing the trans former in thecasing said device comprising subscribed our mines this 27th day ofJune, Wedge blocks which engage the projections 1908.

on the end frames and the groj'ec tlons on the CHRISTIAN AALBORG.interior of the casing, an expansion bolts OTTO SCI-IAUMBERG. interposedbetween opposlte pairs of wedge i Witnesses:

blocks. 1 OTTO P. SGHUSTER,

In testimony whereof, we have hereunto 1 J. W. BROWN.

